Synthesis of Sr3LaAxV3-xO12: Eu3+ (A=Mo, W) White Phosphor by Anion Substitution

YANG Guo-hui; WANG Xiao-jun; CHEN Cai-hua; LIANG Li-fang; MENG Li-li; ZHANG Li-xia

doi:10.3788/fgxb20183910.1385

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Synthesis of Sr₃LaA_xV_3-xO₁₂: Eu³⁺ (A=Mo, W) White Phosphor by Anion Substitution

更新时间：2020-08-12

- Synthesis of Sr₃LaA_xV_3-xO₁₂: Eu³⁺ (A=Mo, W) White Phosphor by Anion Substitution
- Chinese Journal of Luminescence Vol. 39, Issue 10, Pages: 1385-1394(2018)
- 作者机构：
  
  广西师范学院化学与材料科学学院,广西南宁,530001
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China(21161004)
- DOI：10.3788/fgxb20183910.1385
  CLC： O614
- Received：09 January 2018，
  
  Revised：10 April 2018，
  
  Published Online：03 May 2018，
  
  Published：05 October 2018
- 稿件说明：
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杨国辉, 王小军, 陈彩花等. 阴离子取代合成Sr3LaAxV3-xO12:Eu3+(A=Mo,W)白光荧光粉[J]. 发光学报, 2018,39(10): 1385-1394

YANG Guo-hui, WANG Xiao-jun, CHEN Cai-hua etc. Synthesis of Sr3LaAxV3-xO12: Eu3+ (A=Mo, W) White Phosphor by Anion Substitution[J]. Chinese Journal of Luminescence, 2018,39(10): 1385-1394
杨国辉, 王小军, 陈彩花等. 阴离子取代合成Sr3LaAxV3-xO12:Eu3+(A=Mo,W)白光荧光粉[J]. 发光学报, 2018,39(10): 1385-1394 DOI： 10.3788/fgxb20183910.1385.

YANG Guo-hui, WANG Xiao-jun, CHEN Cai-hua etc. Synthesis of Sr3LaAxV3-xO12: Eu3+ (A=Mo, W) White Phosphor by Anion Substitution[J]. Chinese Journal of Luminescence, 2018,39(10): 1385-1394 DOI： 10.3788/fgxb20183910.1385.

摘要

通过高温固相法合成Sr

:Eu

（

=Mo，W）荧光粉，利用MoO

和WO

取代基质中部分VO

，改变基质组成和结构，进而影响基质和激活剂Eu

离子的发光性能。采用X射线衍射（XRD）、扫描电子显微镜（SEM）和荧光分光光度计对所合成样品的物相、形貌、荧光性能及荧光寿命进行表征。研究表明，MoO

和WO

的部分掺杂对基质发光位置和强度均有影响，能明显减弱VO

的发光，但对Eu

离子发光影响不大，添加电荷补偿剂F

可以加强VO

对Eu

离子的能量传递。通过调整基质VO

发光和Eu

离子发光，可以得到单一基质的白光荧光粉。初步探讨了阴离子掺杂对Eu

离子红光发射增强的机理。

Abstract

:Eu

(

=Mo

W) phosphors were synthesized by a high temperature solid state method. X-ray diffraction(XRD)

scanning electron microscopy(SEM)

photoluminescence spectra

and lifetime were utilized to characterize the samples. Partial substitution of VO

by MoO

and WO

in Sr

:Eu

(

=Mo

W) can weaken the emission of VO

and cause a red shift of emission position

but has little influence on the emission of Eu

ion. After charge compensation by adding F

in Sr

LaMo

:Eu

the excitation energy of VO

can be transferred to Eu

ion and then enhance the emission of Eu

ion. A white phosphor of Sr

:Eu

(

=Mo

W) can be obtained by adjusting the emissions of the VO

and Eu

ions. The enhancement mechanism of the red emission of Eu

by anion substitution was briefly discussed.

关键词

Keywords

references

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